package vscale

import (
	"fmt"
	"testing"
	"time"

	"github.com/go-acme/lego/v4/platform/tester"
	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"
)

var envTest = tester.NewEnvTest(EnvAPIToken, EnvTTL)

func TestNewDNSProvider(t *testing.T) {
	testCases := []struct {
		desc     string
		envVars  map[string]string
		expected string
	}{
		{
			desc: "success",
			envVars: map[string]string{
				EnvAPIToken: "123",
			},
		},
		{
			desc: "missing api key",
			envVars: map[string]string{
				EnvAPIToken: "",
			},
			expected: fmt.Sprintf("vscale: some credentials information are missing: %s", EnvAPIToken),
		},
	}

	for _, test := range testCases {
		t.Run(test.desc, func(t *testing.T) {
			defer envTest.RestoreEnv()
			envTest.ClearEnv()

			envTest.Apply(test.envVars)

			p, err := NewDNSProvider()

			if len(test.expected) == 0 {
				require.NoError(t, err)
				require.NotNil(t, p)
				assert.NotNil(t, p.config)
				assert.NotNil(t, p.client)
			} else {
				require.EqualError(t, err, test.expected)
			}
		})
	}
}

func TestNewDNSProviderConfig(t *testing.T) {
	testCases := []struct {
		desc     string
		token    string
		ttl      int
		expected string
	}{
		{
			desc:  "success",
			token: "123",
			ttl:   60,
		},
		{
			desc:     "missing api key",
			token:    "",
			ttl:      60,
			expected: "vscale: credentials missing",
		},
		{
			desc:     "bad TTL value",
			token:    "123",
			ttl:      59,
			expected: fmt.Sprintf("vscale: invalid TTL, TTL (59) must be greater than %d", minTTL),
		},
	}

	for _, test := range testCases {
		t.Run(test.desc, func(t *testing.T) {
			config := NewDefaultConfig()
			config.TTL = test.ttl
			config.Token = test.token

			p, err := NewDNSProviderConfig(config)

			if len(test.expected) == 0 {
				require.NoError(t, err)
				require.NotNil(t, p)
				assert.NotNil(t, p.config)
				assert.NotNil(t, p.client)
			} else {
				require.EqualError(t, err, test.expected)
			}
		})
	}
}

func TestLivePresent(t *testing.T) {
	if !envTest.IsLiveTest() {
		t.Skip("skipping live test")
	}

	envTest.RestoreEnv()
	provider, err := NewDNSProvider()
	require.NoError(t, err)

	err = provider.Present(envTest.GetDomain(), "", "123d==")
	require.NoError(t, err)
}

func TestLiveCleanUp(t *testing.T) {
	if !envTest.IsLiveTest() {
		t.Skip("skipping live test")
	}

	envTest.RestoreEnv()
	provider, err := NewDNSProvider()
	require.NoError(t, err)

	time.Sleep(2 * time.Second)

	err = provider.CleanUp(envTest.GetDomain(), "", "123d==")
	require.NoError(t, err)
}